GKFix MCQ Question

Which isomer of [Fe(NH₃)₂(CN)₄]⁻ is more symmetrical?

• A. cis-[Fe(NH₃)₂(CN)₄]⁻
• B. [Fe(CN)₆]⁴⁻
• C. [Fe(NH₃)₆]²⁺
• D. trans-[Fe(NH₃)₂(CN)₄]⁻